AD 2005-21-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | Deutschland GmbH | Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Formerly Rolls-Royce Deutschland GmbH, formerly BMW Rolls-Royce GmbH) Models BR700-710A1-10 and BR700-710A2-20 Turbofan Engines |
Unsafe Condition
Cracks in fan discs, part numbers BRR18803, BRR19248, and BRR20791, which could lead to fan disc failure and loss of engine thrust.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect fan discs for cracks using visual and ultrasonic methods. Replace cracked discs with serviceable parts. Extend inspection intervals for fan discs with new design fan blades. Optionally, install new fan discs, new fan blades, and N1 Keep Out Zone software as terminating actions.
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Compliance Time
Within 550 flight hours since new or at the next A-Check, whichever occurs first.
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Affected Aircraft
Rolls-Royce Deutschland Ltd & Co KG (formerly Rolls-Royce Deutschland GmbH, formerly BMW Rolls-Royce GmbH) Models BR700-710A1-10 and BR700-710A2-20 turbofan engines with fan discs part numbers BRR18803, BRR19248, and BRR20791.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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